.App {
  text-align: center;
}

.App-logo {
  animation: App-logo-spin infinite 20s linear;
  height: 80px;
}

.App-header {
  background-color: #222;
  height: 150px;
  padding: 20px;
  color: white;
}

.App-intro {
  font-size: large;
}

@keyframes App-logo-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

*{
  box-sizing: border-box;
}

html,body,#app{
  height: 100%;
  margin: 0;
  padding:0;
}

body{
  background: #eee;
  font-family: "Microsoft YaHei UI";
}

h1{
  font-weight: 200;
  color: #3b414c;
  font-size: 20px;
}

ul{
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.app{
  white-space: nowrap;
  height:100%;
}

.list{
  position: relative;
  display: inline-block;
  vertical-align: top;
  white-space: normal;
  height:100%;
  width: 33%;
  padding: 0 20px;
  overflow: auto;
}

.list:not(:last-child):after{
  content: "";
  position: absolute;
  top:0;
  right: 0;
  width: 1px;
  height: 99%;
  background: linear-gradient(to bottom,#eee 0%,#ccc 50%,#eee 100%) fixed;
}
.card{
  position: relative;
  z-index: 1;
  background: #fff;
  width: 100%;
  padding: 10px 10px 10px 15px;
  margin: 0 0 10px 0;
  overflow: auto;
  border: 1px solid #e5e5df;
  border-radius: 3px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.25);
}

.card_title{
  font-weight: bold;
  border-bottom: solid 5px transparent;
}

.card_title:before{
  display: inline-block;
  width: 1em;
  content: '▶';
}
.card_title--is-open{
  /*这里还必须分开写,这两个属性写在before中还无效*/
  font-weight: bold;
  border-bottom: solid 5px transparent;
}
.card_title--is-open:before{
  content: '▼';
  display: inline-block;
  width: 1em;
}

.checklist_task:first-child{
  margin-top: 10px;
  padding-top: 10px;
  border-top: dashed 1px #ddd;
}

.checklist_task--remove:after{
  display: inline-block;
  color: #d66;
  content: '+';
}
.checklist_add_task{
  border: 1px dashed #bbb;
  width:100%;
  padding: 10px;
  margin-top: 5px;
  border-radius: 3px;
}
